<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        body {
            margin: 100px 600px;
        }

        .head a {
            display: block;
            width: 250px;
            height: 50px;
            line-height: 50px;
            padding-left: 20px;
            background-color: rgb(131, 255, 127);
            color: #000;
            text-decoration: none;
        }

        a:hover {
            color: honeydew;
            background-color: aquamarine;
        }
    </style>
</head>

<body>
    <div class="head">
        <a href="#">山东介绍</a>
        <a href="#">行政区划</a>
        <a href="#">地理环境</a>
        <a href="#">自然资源</a>
        <a href="#">人口民族</a>
        <a href="#">经济概况</a>
        <a href="#">经济概况</a>
        <a href="#">固定投资</a>
    </div>
</body>

</html>